Sinn Pilot Chronograph 103 Ti UTC IFR 103.0794

DIN 8330 was developed through DIN, the German standards body, and builds largely on the earlier TESTAF certification, with stricter requirements for resistance to vibration, plus day and night legibility and resistance to aviation fluids such as fuel. On the IFR dial that shows as orange chronograph accents and a DIN 8330 stamp in place of the 12-hour counter at six o'clock. The 103 Ti IFR runs on the Valjoux 7750, a self-winding chronograph movement.

Its twin is the 103 Ti IFR (103.0793), with the same 17 mm-thick case, 20 mm strap width, black dial and rotating 60–0 countdown bezel but no UTC hand. The 103 Ti UTC TESTAF (103.0791) carries the UTC hand in a slimmer case, 15.5 mm thick.